Scientists working for the UK government are considering imposing a ban on lamb on the bone or over a year old, as part of a plan aimed at reducing the risk of people developing vCJD (variant Creutzfeldt-Jakob Disease - the human form of mad cow disease). Such a measure would considerably cut the risk of meat from BSE-infected sheep making its way into the food chain. However, it could face strong resistance from farmers struggling to make a livelihood after last year's foot and mouth crisis, not least because there is no evidence that Britain's sheep have been infected with BSE.